conputer shutsdown at random and wont start

neep help my computer tends to turn off randomly without any warning or error. when my computer does turn off it usally shuts off when im downloding, playing games, watching movies and somtime when idleing. its like someone walks up and unplugs my compter and when i go to press the power botton my computer will not turn on. if i unplug my computer for a few minutes and plug it back up i can turn my compter back on.when it starts back up there is still no error. can any one please help me this is really starting to drive me crazy.

sounds like you are overheating.download speedfan, its free and will help you monitor your temps.

you could also use a can of compressed air to blow out all the vents/fans/cooling blocks and then vacuum all the vents to clear any dust that may be clogging the and vents. do that while the machine totally unplugged of course.

any way on how to remove the fan off the heatseank for the processer. lots of dust build up.

i have also notice wierd things to. like there has been a couple of times were i had hit (not hard) the top or side (not where the motherboard is located usally top front corner only did it three times). last week i got a new case and last night was the first time it happened and just got it up and running . i got speed fan up and im looking at and every thing is running below 31c right now but my video card is at 59c witch ill check video card for dust the fan still is running

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